The 'Dolls' are seemingly inorganic models that contain the human essence of fragmented souls. The Being feeds on the entities trapped within so that it can keep its power to travel to and from planes through The Tear.
Throughout the main core locations in Wakeland City, these dolls can be found. It was advised by Elijah Gray that Daniel North should take the dolls to the Ritual Points which would automatically set fire to the dolls if placed in one at a time and set the tormented souls free, but Daniel disagreed. He felt there would be a better option to save the souls or to trick the Being.
The souls could not be directly obtained by The Being, it relied on the Proxies to gather them for it, to which it would then store into the dolls. The only souls The Being can gather are those of the Proxies themselves.